a30c050d5c41a945070a45ed9b547fe0d9def41a86a09cb6ca600382faf64099

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/10/2024, 12:15

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General

Target

$PLUGINSDIR/WinOS.dll
Size

44KB
MD5

d1590cb1b028642d102e1d83a2416c6d
SHA1

1019074325a97d3e441b42c88cbfbff117c91b07
SHA256

6f172dcd874d8aacad8d111d6b5296273fe9b568df472f429c046148303b164d
SHA512

1280e38d48132cae8614e1327ae285b40dd4bbc37c0c5bb4425af1794fbc3f690b8dd09221e16729795fa39b6d4e7f199a15b63a068e600ebbb0ec7952db9aea
SSDEEP

384:e21xs/yT57PzAVthrKLHRSe/o37askMHJ3PyOfBJIVpYUu4st5USkavlPx7cRz03:K6ThPzebiRS33ftPZ5JIVuUQNTvlPIz

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2388	2084	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2084	2532	rundll32.exe	30
PID 2532 wrote to memory of 2084	2532	rundll32.exe	30
PID 2532 wrote to memory of 2084	2532	rundll32.exe	30
PID 2532 wrote to memory of 2084	2532	rundll32.exe	30
PID 2532 wrote to memory of 2084	2532	rundll32.exe	30
PID 2532 wrote to memory of 2084	2532	rundll32.exe	30
PID 2532 wrote to memory of 2084	2532	rundll32.exe	30
PID 2084 wrote to memory of 2388	2084	rundll32.exe	31
PID 2084 wrote to memory of 2388	2084	rundll32.exe	31
PID 2084 wrote to memory of 2388	2084	rundll32.exe	31
PID 2084 wrote to memory of 2388	2084	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinOS.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\WinOS.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2084
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 224
    3⤵
    - Program crash
    PID:2388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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